Fig. 2
From: Redox dependent metabolic shift in Clostridium autoethanogenum by extracellular electron supply
Redox potentials of the three mediators [Co(sep)]3+, [Co(AMMEsar)]3+ and [Co(trans-diammac)]3+. a Cyclic voltammograms recorded in the bio-electrochemical system at 1 mV/s for 5 cycles, EWE vs Ag/AgCl. b Schematic image of mediator redox potentials and redox windows for biological reduction of ferredoxin, NAD(P)+ and H+